537912621 has 6 divisors (see below), whose sum is σ = 776984910. Its totient is φ = 358608408.

The previous prime is 537912607. The next prime is 537912631. The reversal of 537912621 is 126219735.

It can be written as a sum of positive squares in only one way, i.e., 513022500 + 24890121 = 22650^2 + 4989^2 .

It is not a de Polignac number, because 537912621 - 2¹⁴ = 537896237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537912631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29884026 + ... + 29884043.

It is an arithmetic number, because the mean of its divisors is an integer number (129497485).

Almost surely, 2^537912621 is an apocalyptic number.

It is an amenable number.

537912621 is a deficient number, since it is larger than the sum of its proper divisors (239072289).

537912621 is a wasteful number, since it uses less digits than its factorization.

537912621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59768075 (or 59768072 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 537912621 is about 23192.9433449056. The cubic root of 537912621 is about 813.2746674331.

The spelling of 537912621 in words is "five hundred thirty-seven million, nine hundred twelve thousand, six hundred twenty-one".